keen

verb

To make cold, to sharpen.

1. Often with a prepositional phrase, or with to and an infinitive: showing a quick and ardent responsiveness or willingness; eager, enthusiastic, interested.

   I’m keen on computers.

2. Fierce, intense, vehement.

   This boy has a keen appetite.

3. Having a fine edge or point; sharp.
4. Acute of mind, having or expressing mental acuteness; penetrating, sharp.
5. Acrimonious, bitter, piercing.

   keen satire or sarcasm

6. Of cold, wind, etc.: cutting, penetrating, piercing, sharp.

   a keen wind

7. Of prices, extremely low as to be competitive.
8. Marvelous.

   I just got this peachy keen new dress.

9. Brave, courageous; audacious, bold.

noun

A prolonged wail for a deceased person.

1. To utter a keen.
2. To utter with a loud wailing voice or wordless cry.
3. To mourn.